| Code | Name | City | State |
| YLRY | Y LUMBER | RYE | TX |
| YMCY | YAMAHA MOTOR CORPORATION USA | CYPRESS | CA |
| YLLB | YAMKO LOGISTICS | LONG BEACH | CA |
| YBAU | YANCEY BROTHERS | AUSTELL | GA |
| YUHT | YANFENG USA AUTOMOTIVE INTER | HARRISON TOWNSHI | MI |
| YMBO | YANKE MACHINE SHOP INC | BOISE | ID |
| YHNO | YANKEE HILL MACHINE CO | FLORENCE | MA |
| YMST | YARDE METALS | STREETSBORO | OH |
| YMMA | YARGUS MANUFACTURING INC | MARSHALL | IL |
| YLGR | YARMOUTH LUMBER INC | GRAY | ME |
| YCDA1 | YELL COUNTY EMERGENCY MED SV | DANVILLE | AR |
| YEMI | YELLOW EQUIPMENT SALES&SVCS | MIAMI | FL |
| YESL6 | YESCO ~ BOISE DIVISION | SALT LAKE CITY | UT |
| YESL5 | YESCO ~ DENVER DIVISION | SALT LAKE CITY | UT |
| YESL9 | YESCO ~ LA DIVISION | SALT LAKE CITY | UT |
| YESL7 | YESCO ~ LAS VEGAS DIVISION | SALT LAKE CITY | UT |
| YESL2 | YESCO ~ OGDEN DIVISION | SALT LAKE CITY | UT |
| YESL4 | YESCO ~ PHOENIX DIVISION | SALT LAKE CITY | UT |
| YESL8 | YESCO ~ RENO DIVISION | SALT LAKE CITY | UT |
| YESL1 | YESCO ~ SALT LAKE DIVISION | SALT LAKE CITY | UT |
| YESL10 | YESCO ~ ST GEORGE DIVISION | SALT LAKE CITY | UT |
| YMCO | YETTER MANUFACTURING CO INC | COLCHESTER | IL |
| YALI | YINGLING AND ASSOCIATES | LILLY | PA |
| YJEP | YJA LOGISTICS LLC | EL PASO | TX |
| YNGF | YNOT TRUCKING | GREAT FALLS | MT |
| YFTO | YOU FIRST EXPRESS INC ~ YFE | RANCHO PALOS VER | CA |
| YABU | YOUNG AND MCQUEEN GRADING CO | BURNSVILLE | NC |
| YBMU | YOUNG BROS STAMP WORKS INC | MUSCATINE | IA |
| YTVA | YOUNG TRUCK SERVICE LLC | VALPARAISO | IN |
| YTYO | YOUNGSTOWN TUBE CO | CRANBERRY TWP | PA |
| YSAS | YOUNKIN & SONS LOGISTICS INC | ASHLAND | OH |
| YWME | YOUR WAY TRANSPORTATION INC | MEDINA | OH |
| YFVA | YOURFREIGHTRATE.COM LLC | VALDOSTA | GA |
| YIME | YOWELL INTERNATIONAL | MELBOURNE | FL |
| YROP | YRC FREIGHT | OVERLAND PARK | KS |
| YTAL | YTA INC dba FREIGHTBUZZ | NORTH MIAMI | FL |
| YULA | YUCARZA LLC | LAREDO | TX |
| YLCO | YUSEN LOGISTICS (AMERICAS) | CORDOVA | TN |